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Note 9 - Commitments and Contingencies (Details Textual) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2023 | Dec. 31, 2023
Other Liabilities | $ 35,044,000 |  |  | $ 35,737,000
Holdback Reserve For Guaranteed Loans [Member] |  |  |  |
Other Liabilities | 2,000,000 |  |  | 2,100,000
Federal Home Loan Bank of Des Moines [Member] |  |  |  |
Loans Serviced | $ 8,700,000 |  |  |
Amount to Outstanding Credit Enhancement (CE) Obligation, Percentage | 10.00% |  |  |
Escrow Holdback Relative to Outstanding Credit Enhancement (CE) Obligation | $ 39,000 |  |  |
Federal Home Loan Bank of Des Moines [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |
Loans Serviced | 0 |  |  | 0
Federal Home Loan Bank of Des Moines [Member] | Recourse [Member] |  |  |  |
First Loss Account (FLA) | 581,000 |  |  |
Credit Enhancement (CE) Obligation | $ 389,000 |  |  |
Credit Enhancement (CE) Obligation, Percentage of Outstanding Loans | 4.50% |  |  |
Unfunded Loan Commitment [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss | $ 1,500,000 |  |  | $ 78,000,000,000
Financing Receivable, Allowance for Credit Loss, Recovery | $ 24,000 | $ 149,000 | $ 305,000 |

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